Board of Governors of the Federal Reserve System (U.S.), 1935-. "Mortgage Debt Outstanding, by Type of Holder and Type of Property," in Board of Governors of the Federal Reserve System (U.S.), 1935-. "1985," Annual Statistical Digest (October 1986) : 102-103. https://fraser.stlouisfed.org/title/7/item/23512/toc/158845 , accessed on March 28, 2023.